Grease cup



March 26, 1929. w H, DURAN-r 1,706,917

GREASE CUP Filed Nw B' 1926 William H Dumm bywwym.

Parenteel Mar. 26, 1929.`

di." UFFECE..

CUP.

Applcarion ed November 3, 1926. Serial No. lfi. i

This invention relaies to grease cnps and paii'icnloriy to cap er clos'i le therefor.

@ne of the objef/s of i; ie invention is i7@ provide a grease cup cap iviih novel means 'er locking Jshe cap te the `grease cnp so ihai: iii; will not` Work loose diie to vibration of izhe richine or part Wiiih which the presse cup is used. u

Another ohjeci ofi i'ihe invention is to provire he grease cup cap with novel. indicatnieans which xviii visnaily indicate 'the aiiionnt oi grease in 'the gres-se cup.

in order to give an understanding; ci?? the invenivion i have ilinsiraized in he drawings a seieciied enibedinieniJ siiei'eoif which Wiii noiv he described a'iiier which Jhe novel ieaiures Will be pointed oui. in the appended claims.

Figi'. 1 is e sectional view of a lgrease cup embodying' my invention having inv iinproved cap applied th reto, seid secr-ien beine: faken on the line 1.-1, Fig. E2;

2 is e sec-tion on the line QFQ, l;

3 a section on the line` SH3, Fig. 2.

in "the drawing; 'l indicates Jehe grease cup which is provided with a grease-receiving chamber 2. This grease cnp maybe attached te or used in connection with any machine or apparatus which requires grease. The grease cup is provided Wish a duct 3 ihrongigh which rhe `draai-1e is i'lelivered from the I.fri-onse-receivingr chan'iber 2 io the bearing which is to be lnbricaied.

fl; indicates iihe ,rireaiso cap closure which is in the 'liorm oit a cap. ilhis isn'iade with rhe scrwvtlireaded porlion 5 which is il.- hxstrated as screwing into afimshine' 6, the iaier in burn having' a screw-iiireaded portion 7 that has screw-threaded engagement with Jche `iniernal screw J[ihrer-.ds 8 oi.' iihe grease cnp i.

@ne feature of my invention releres ro e. iiovcl means for locking); the cap i to the bushing; 6. which ineens will preventy the cap ,ii-ein becoming' ioosened due to jar or vibration oie the machine with W1 ich the device nsed. rihe cap 4i. has a Heilige 9 which overlies Jche end of the bushing 6, and i1-his iiiang'e carries ya resilient locking` ineinber which frictionaliy engages the end Wall l() or' the bushing 6 and thereby prevents the cap frein unsereiving due i0 j ar or vibration. This resilient locking' member is indicated at li and is received in a `recess l2 iornoed in ithe under side of the flange 9. This locking ineinber 1l may eonvenieniiljy7 he made from .at 3"? and when this type oil grease is nf-ved. the stick 0r caire of grease will have a crossa siii-ip of spring merel and Vin the ferm shown the strip is beni io present :i curved body portion i3, with 'he ends of the strip eens toward each other to iiforin the feei 14. These ee. resi: on and ricrionaily engage ivhe rep snifafi-e i() of the bushing; (3.

liieans are provi ded for retaiiiiiing the ioclringr .in-einher ll. in the recess l2 and for ineinrzainingg ii propel'flv positioned in he recess. rThis is herein accomplished by a. retaining; inernber i5 in the foi-in of a Wire which is iooped about a pin l@ that is carried bv the flange 9 and extends ransversely across'the recess i2. rihe ends oi' the Wire l5 rest against the feet 14. riihe iocliini;` nieinber is prevented from falling oniJ of J[he recess when the ip is removed by Jche pin 16 and 'ihe engagement of; the enf, s of' ihe Wire retainei.' 15 with the feet lli serve to hold Jdie iocling; ineinber ll in iis proper position.

'iiie ioeli.'A ig member is so formed that norinaliy when it is not subjected 'io pressure, as will be the ease when the cap is reinoved frein jruhe grease clip, the feet le xviii :resume a position below the lower surface oi' the i'iange 9. l/Vhen zhe cap fil-.is screwed into Athe bushing` the ifee't lei wili engage ihe surface l0 before the cap is zigjhtened and dni-ing J@he iinal screiving;` up oi" the cap the locking' member will be iiexed and the feet will. be prei'sscd yieidingggly against ihe snrace i() with considerable pressure. riVhis yielding; iirictional engagement ei? the 'i'eet iiwiigh Athe surface l() will` he snii'icient izo loch the cap ifroni backward inrninn; nievenieni'y and lo hohl the rap ironi becoming' loosened due to jar or vibration in ihe. inach'ine wiih which. the grease cup isjiiscd.

Another :ieainre of my invention reif f to a telltale device i'o indicare ihe quan of grease in the chamber 2. As herein shown the cap 4i is provided wiih a chamber 5G in which. is received a s" finir-pressed, phnigger lf2', the latter bein`V4 icixed iipon b v spring;1 18 which norinailj7 .ends to .'Eorce it dewiiwai'dly aoainst the grease in the chainher 2. This Agrease is frequently a hard `.grease in ihe forni of a sivicli such as shown sectional area similar to that of 'the chain` bei' 06. The pressure of ii-he plunger 17 against ivhe celare or erick o'li grease heide it against the end of j@he duct 3 and the heet generated in the bearing of the machine is reiied upon :for melting the grease gradu- .-mellts.

ally, the meltedV grease running down the duct 3 to the bearing. The plunger' 1T acts as a follower to-hold the grease against the end ot the duct as the grease gradually In order to give. an indication as to. the.' amount et grease in the chamber 2 tne plunger hasrigid therewith a telltale stem ,19V which extends through-'the bony of the cap and is provided in its projecting end witha stop vpin 2O ,that'serves limit the A'spririgimpelled vmoven'ient of the plunger 1.( The 'amount which the end of the projects beyond the face 2l of tl'ie cap will giveany indicationV of the amont of grease in the chamber 2. y

In order toprotectthe telltale device from being bent or broken or otherwise injured the cap is ormedwith an extension 22 which is lprovided with a chamber 23 in which the endQt ofthe telltale is received and the ef;- tension is formed with sight openings leading to the chamber and through which the end ,24 of the telltale stem can .be observed.' VIhishousing or ente sion 22 protects the telltale from'being injured by being struck against any object but at the same time does not interfere with the observation of the telltale.M Y Y y The extension 22 Ymay conveniently b made square or flat-sided so that it iiorms a Vwrench-receiving portion to which a wrench ma be a relied for screwinof the ca 3' l. ,Y b

of resilient locking device yet I do not wish toibo limited to the particular 'construction illustrated as the shape of the locking device may be ,varied more or less without departing from the-invention.

f I claim:

l. In a device of the class described, the combination with a grease cup having a grease-receiving chamber and a screwthreaded opening,'fof a cap screw threaded into said opening andjprovldedwith a flange overlying the end oi the grease cnp,lsaid flange having a recess therein, and a resilient locking member locatedentirely in said recess, said looking member having a curved body, and feet which havea yielding frictional engagement w-ith the end of the grease cup due to the resiliency of said body.

2. YIn a device of the class described, the combination with a grease cup having a grease-retaining chamber and a screwthreaded Opening, a cap screwthreaded into said opening and provided with a flange overlying the end of the vgrease cup, said flange having a recess therein, and a resilient locking member located entirely in said recess, said lool-ring member lmviiml :in arcuatesh'aped body with a loot portion extending from each end of the body toward the other end, said feet portions resting against the end face of the grease cup and b j {rit-tional engagement therewith preventing accidental turning movement oi the cap.

In a device oit the class dcr-xcrilml. the, combination with a grease cup having :l grease-retaining chamber and a screwt-hreaded opening, a cap screw threaded into said opening and lnovided with a llungc overlying the end oi the grease cap. said lange having a recess therein and :t resilient locking member lo ated entirely in .-,aid re- Cess, said loci-:ing member having` an arcuateshaped body with :toot portion exteruling from cach end of the body toward the other end, said feet portions resting agrumi (he end face ol' the grease cup and by Yl'rictional engagement i'vhcrewith preventing accidental turning mex/'ement ot the cap. and means for retaining the arcuate-slmped resilient nicmber in said recess.

4. In a device of the class described, the combination with a grease cup having a grease-retaining chamber and a :crewthreaded opening, a cap screw threaded imo said opening and lrovided with a flange overlying the .cnd ot' the greaf-:e cup. said Aflange having` a recess therein and a resilient locking member located entirely in said recess, said locking member having an arcuateshapcd body with a foot portion extendingr from each. end or the body toward the other end, said feet portions resting against the 'end face of the grease cup and by riciiomd engagement therewith prt-wentingr accidental turning movement of the cap, and :l retaining member anchored in the rece .s and having arms resting against the feet of the lochmg member.

5. he combination with a grease cup havinnr a grease-receiving chamber, ole a cap detaehablY applied thereto, said cap having a cylindrical chamber and a hollow extension separate from said chamber by a partition, said chamber having its end closed and being provided with a plurality of lateral slots, a follower' in the chamber ot the cap, a stem secured to the follower and extending through the partition and into the chamber of the extension, and a stop pin carried by the stem and located entirely within the chamber of the extension, said stop pin by its engagement with the partition limiting the spring-impelled movement of the follower, and said extension being .fiqnared externally, whereby it forms a wrench-rcceiving portion for' he cap.

In testimony whereof, I have signed my name to this specilication.

IVILLIAM H. DURANT.

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